2101143431424 has 144 divisors (see below), whose sum is σ = 5713895319552. Its totient is φ = 685142329344.

The previous prime is 2101143431419. The next prime is 2101143431437. The reversal of 2101143431424 is 4241343411012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101143431391 and 2101143431400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79506277 + ... + 79532699.

It is an arithmetic number, because the mean of its divisors is an integer number (39679828608).

Almost surely, 2^{2101143431424} is an apocalyptic number.

2101143431424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101143431424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856947659776).

2101143431424 is an abundant number, since it is smaller than the sum of its proper divisors (3612751888128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101143431424 is a wasteful number, since it uses less digits than its factorization.

2101143431424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28692 (or 28678 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 2101143431424 its reverse (4241343411012), we get a palindrome (6342486842436).

The spelling of 2101143431424 in words is "two trillion, one hundred one billion, one hundred forty-three million, four hundred thirty-one thousand, four hundred twenty-four".